Home / 5,518-8,271.51-2,591.11

Finding the Fourth Proportional to 5,518, 8,271.51 and 2,591.11

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Solution

The fourth proportional to 5,518, 8,271.51 and 2,591.11 is: 3,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518 : 8,271.51 = 2,591.11 : x
  2. Step 2: Convert to fraction form
    5,518/8,271.51 = 2,591.11/x
  3. Step 3: Cross multiply
    5,518x = 8,271.51 × 2,591.11
  4. Step 4: Simplify right side
    5,518x = 21,432,392.28
  5. Step 5: Solve for x
    x = 21,432,392.28/5,518
  6. Step 6: Final answer
    x = 3,884.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.